Martin Luther King Jr. was born in Atlanta, Georgia on January the 15th 1929.
He was leader of the American Civil Rights Movement which campaigned for racial equality and an end to the legally sanctioned racial segregation.
Dr King advocated non-violent protest and was awarded the Nobel Peace Prize in October 1964.
His most famous speech, the "I have a Dream speech" was given in August 1963 at the Lincoln memorial.
Dr King was assassinated on the 4th of April 1968 in Memphis, Tennessee. The 9th of April was made a national day of mourning and an enormous crowd attended his funeral in Atlanta, Georgia.
Two days after the funeral the 1968 Civil Rights Act was signed by President Johnson
Martin Luther King Day is a US public holiday that falls on the third monday of January.
martin luther king